adj. lidless
misc. uncowled ; noa-operculate
电阻或无盖的质量妥协。
将优化设计理论应用于工程设计，列举了无盖容器最小用料量的优化设计的两个应用实例，结果表明将容器取为截头圆锥体形状时，最为节省材料。
Optimization design theory is applied to the engineering design, and two practical examples of minimal material optimization about uncovered container are given in this paper.
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